- washing soda one box - 3.7 pound- empty in a large bowl or some container- then fill that empty box with the borax because borax is a bigger box (4.12 pound) and you only need an equal amount- bar soap-there is fels naptha made by purex and does not smell very good, and there is also zote ( if they don't want zote or fels naptha soap they can use ivory too since it also is not a lot of suds)- about 3 days before, I used a hand cheese grater to grate the soap- so it could sit out and dry out ( be sure no one eats it-it will look like a big bowl of coconut!)

- the last step is mixing it up**Beware it makes a lot of dust when you take the lid off the blender so stand back or don't inhale!- I put it in my blender about a cup of grated soap and a cup of powder at a time to grind the soap up to powder consistency- then dumped it all into a big bowl together and mixed with my hands- used a 1/8 cup measure spoon from dollar tree that said a coffee spoon and it made 121 loads for $5.98

***TIPI also used white vinegar in the Downy ball for fabric softener and it worked great-no vinegar smell in clothes